Diniprofylline, a bronchodilator, is a phosphodiesterase inhibitor. Diniprofylline possesses the potential to interact with human ACE2 and prevent its recognition by SARS-CoV-2[1].
References
[1] Kerem Teral?, et al. Prioritizing potential ACE2 inhibitors in the COVID-19 pandemic: Insights from a molecular mechanics-assisted structure-based virtual screening experiment. J Mol Graph Model. 2020 Nov:100:107697. DOI:10.1016/j.jmgm.2020.107697